Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8156221 | Performance information collection method, apparatus and recording medium | Kouji Ohta, Hui Li, Saeko Nakamura | 2012-04-10 |
| 7904549 | Performance information collection method, apparatus and recording medium | Kouji Ohta, Hui Li, Saeko Nakamura | 2011-03-08 |